accessibility/yasr: Unbreak everywhere after stage attempt
After staging, this port failed because PLIST_SUB for NLS was
no longer defined. The option has to be explicitly listed
for OPTIONS_SUB to work. Define DOCS while here and bump because
it has been building incorrectly.

Update CONFIGURE_ARGS for how we pass CONFIGURE_TARGET to configure script.
Specifically, newer autoconf (> 2.13) has different semantic of the
configure target. In short, one should use --build=CONFIGURE_TARGET
instead of CONFIGURE_TARGET directly. Otherwise, you will get a warning
and the old semantic may be removed in later autoconf releases.
To workaround this issue, many ports hack the CONFIGURE_TARGET variable
so that it contains the ``--build='' prefix.
To solve this issue, under the fact that some ports still have
configure script generated by the old autoconf, we use runtime detection
in the do-configure target so that the proper argument can be used.
Changes to Mk/*:
- Add runtime detection magic in bsd.port.mk

Bump portrevision due to upgrade of devel/gettext.
The affected ports are the ones with gettext as a run-dependency
according to ports/INDEX-7 (5007 of them) and the ones with USE_GETTEXT
in Makefile (29 of them).
PR: ports/124340
Submitted by: edwin@
Approved by: portmgr (pav)

YASR ("Yet Another Screen Reader") is an attempt at a lightweight,
portable screen reader. It works by opening a shell in a pty and
intercepting all user input/output, maintaining a window of what
should be on the screen by looking at the codes and text sent to the
screen. It thus uses no Linuxisms such as /dev/vcsa0 and does not
necessarily need to be setuid root (the only requirement being that
the user be able to access the tts device).
WWW: http://yasr.sourceforge.net/
Ported by David K. Gerry <David.K.Gerry@GMail.com>
PR: ports/119789
Submitted by: David K. Gerry